The Sun was a Monday-through-Saturday newspaper for more than 40 years. It has become a seven-day-a-week operation now. It was published on Sunday, Feb. 26, 2012 for the first time. The Sun on Sunnday is the best answer to their critics. It is a classic Rupert Murdoch mounting a counter-attack at a moment of vulnerability. It may fill the void created by the closing of the News of the World. Though the company News Corp. is sustained by non-newspaper business, and is more a sports and entertainment company, it is drawn into newspaper business by Murdoch’s fondness for them.